System and method for indicating track relationships in media files
    1.
    发明授权
    System and method for indicating track relationships in media files 有权
    用于指示媒体文件中的跟踪关系的系统和方法

    公开(公告)号:US08365060B2

    公开(公告)日:2013-01-29

    申请号:US11844300

    申请日:2007-08-23

    IPC分类号: G06F17/00

    摘要: A system and method for signaling and indicating track relationship information in media files provides a mechanism for signaling the information of layered track groups and the information of multiple description coding (MDC) track groups, as well as a mechanism for signaling track relationship information in an efficient way. In local playback or unicast streaming applications, to select an independently decodable track for a certain media type, the information of alternate track groups is first found via the track relation box, and one track is selected from an alternate track group for the media type. If stream switching is desired, the switching track group information is found via the track relation box. In multicast applications with scalable or MDC streams, the tracks in a layered or MDC group are found via the track relation box and selected among all the layered or MDC groups.

    摘要翻译: 用于在媒体文件中发信号通知和跟踪关系信息的系统和方法提供了一种用于对分层轨道组的信息和多描述编码(MDC)轨道组的信息进行信令的机制,以及用于在一个 高效的方式。 在本地播放或单播流应用中,为了选择特定媒体类型的独立解码的音轨,首先通过音轨关系框找到备用音轨组的信息,并从媒体类型的备用音轨组中选择一个曲目。 如果需要流切换,则通过轨道关系框找到切换轨道组信息。 在具有可扩展或MDC流的多播应用中,分层或MDC组中的轨道通过轨道关系框找到并在所有分层或MDC组中选择。

    SYSTEM AND METHOD FOR INDICATING TRACK RELATIONSHIPS IN MEDIA FILES
    2.
    发明申请
    SYSTEM AND METHOD FOR INDICATING TRACK RELATIONSHIPS IN MEDIA FILES 有权
    用于指示媒体文件中的跟踪关系的系统和方法

    公开(公告)号:US20080052306A1

    公开(公告)日:2008-02-28

    申请号:US11844300

    申请日:2007-08-23

    IPC分类号: G06F17/30

    摘要: A system and method for signaling and indicating track relationship information in media files. The present invention provides a mechanism for signaling the information of layered track groups and the information of MDC track groups, as well as a mechanism for signaling track relationship information in an efficient way. In local playback or unicast streaming applications, to select an independently decodable track for a certain media type, the information of alternate track groups is first found via the track relation box, and one track is selected from an alternate track group for the media type. If stream switching is desired, the switching track group information is found via the track relation box. In multicast applications with scalable or MDC streams, the tracks in a layered or MDC group are found via the track relation box and selected among all the layered or MDC groups.

    摘要翻译: 用于在媒体文件中发信号通知和跟踪关系信息的系统和方法。 本发明提供了一种用于对分层轨道组的信息和MDC轨道组的信息进行信令的机制,以及用于以有效的方式发送跟踪关系信息的机制。 在本地播放或单播流应用中,为了选择特定媒体类型的独立解码的音轨,首先通过音轨关系框找到备用音轨组的信息,并从媒体类型的备用音轨组中选择一个曲目。 如果需要流切换,则通过轨道关系框找到切换轨道组信息。 在具有可扩展或MDC流的多播应用中,分层或MDC组中的轨道通过轨道关系框找到并在所有分层或MDC组中选择。

    Picture delimiter in scalable video coding
    4.
    发明授权
    Picture delimiter in scalable video coding 有权
    可分级视频编码中的图片分隔符

    公开(公告)号:US08767836B2

    公开(公告)日:2014-07-01

    申请号:US11691436

    申请日:2007-03-26

    IPC分类号: H04N7/12

    摘要: The use of a picture delimiter that is contained in a NAL unit type value that is reserved in the current AVC or SVC specification. The present invention provides the scalability information for the H.264/AVC base layer in such a manner that bitstreams remain decodable with H.264/AVC decoders. In addition, the picture delimiter of the present invention may contain many other syntax elements that can help in easier processing of bitstreams compared to the plain H.264/AVC bitstream syntax.

    摘要翻译: 使用包含在当前AVC或SVC规范中保留的NAL单元类型值的图像分隔符。 本发明以H.264 / AVC解码器保持解码的方式为H.264 / AVC基础层提供可扩展性信息。 此外,与普通的H.264 / AVC比特流语法相比,本发明的图像分隔符可以包含许多其他语法元素,其可以帮助比特流的更容易的处理。

    System and method for implementing efficient decoded buffer management in multi-view video coding
    5.
    发明授权
    System and method for implementing efficient decoded buffer management in multi-view video coding 有权
    在多视点视频编码中实现高效解码缓冲管理的系统和方法

    公开(公告)号:US08396121B2

    公开(公告)日:2013-03-12

    申请号:US11872679

    申请日:2007-10-15

    IPC分类号: H04N11/02

    摘要: A system and method for encoding a first picture sequence and a second picture sequence into coded pictures, with the first picture sequence and the second picture sequence being different, and with at least one coded picture of the second picture sequence being predicted from at least one picture in the first picture sequence. According to various embodiments of the present invention, signal element is encoded into a coded picture of the second picture sequence. The signal element indicates whether a picture in the first picture sequence is used for prediction of the coded picture of the second picture sequence.

    摘要翻译: 一种用于将第一图像序列和第二图像序列编码成编码图像的系统和方法,其中第一图像序列和第二图像序列不同,并且至少一个第二图像序列的编码图像从至少一个 图片在第一张图片序列中。 根据本发明的各种实施例,信号元素被编码为第二图像序列的编码图像。 信号元素指示第一图像序列中的图像是否用于第二图像序列的编码图像的预测。

    Discardable lower layer adaptations in scalable video coding
    6.
    发明授权
    Discardable lower layer adaptations in scalable video coding 有权
    可扩展视频编码中的可消除的较低层适应

    公开(公告)号:US07991236B2

    公开(公告)日:2011-08-02

    申请号:US11872683

    申请日:2007-10-15

    IPC分类号: G06K9/36 G06K9/42 G06K9/46

    CPC分类号: H04N19/33 H04N19/30 H04N19/61

    摘要: A system and method for improving both coding efficiency and decoding accuracy in scalable video coding involving discardable lower layer adaptations, where applications can omit transmission of unused data for inter-layer prediction for all layers below an operation point of receivers. Indicator flags are utilized to avoid transmitting syntax elements that must be set to fixed values. In addition, padding algorithms or additional encoding constraints are applied to the encoding process.

    摘要翻译: 一种用于提高涉及可丢弃的较低层适应性的可伸缩视频编码中的编码效率和解码精度的系统和方法,其中应用可以忽略接收机操作点以下的所有层的层间预测的未使用数据传输。 指示符标志用于避免传送必须设置为固定值的语法元素。 此外,填充算法或附加编码约束被应用于编码过程。

    Signaling of multiple decoding times in media files
    7.
    发明申请
    Signaling of multiple decoding times in media files 有权
    在媒体文件中发送多个解码时间的信号

    公开(公告)号:US20080292003A1

    公开(公告)日:2008-11-27

    申请号:US12150018

    申请日:2008-04-24

    IPC分类号: H04N7/26

    摘要: The exemplary embodiments of this invention provide in one aspect thereof an ability to signal multiple decoding times for each sample in a file format level in order to allow, for example, different decoding times for each sample (or sample subset) between decoding an entire stream and decoding a subset of the stream. An alternate decoding time box is specified to allow for the signaling of multiple decoding times for each sample. Such a box can contain a compact version of a table that allows indexing from an alternate decoding time to a sample number, where an alternate decoding time is a decoding time to be used with a sample when only a subset of an elementary stream stored in a track is to be decoded. Furthermore, each entry in the table provides the number of consecutive samples with the same time delta, and the delta between those consecutive samples. By adding the deltas a complete time-to-sample map can be constructed.

    摘要翻译: 本发明的示例性实施例在其一个方面中提供以文件格式级别为每个样本发送多个解码时间的能力,以便例如在解码整个流之间为每个样本(或样本子集)提供不同的解码时间 并解码流的子集。 指定替代解码时间框以允许每个样本的多个解码时间的信令。 这样的盒子可以包含表格的紧凑版本,其允许从备选解码时间到样本号码的索引,其中替代解码时间是当仅存储在一个样本中的基本流的子集时与样本一起使用的解码时间 轨道将被解码。 此外,表中的每个条目提供具有相同时间增量的连续样本的数量,以及这些连续采样之间的增量。 通过添加三角形可以构建完整的时间到样本地图。

    VIRTUAL DECODED REFERENCE PICTURE MARKING AND REFERENCE PICTURE LIST
    8.
    发明申请
    VIRTUAL DECODED REFERENCE PICTURE MARKING AND REFERENCE PICTURE LIST 有权
    虚拟代码参考图片标注和参考图片列表

    公开(公告)号:US20080260034A1

    公开(公告)日:2008-10-23

    申请号:US11874123

    申请日:2007-10-17

    IPC分类号: H04N7/26

    摘要: An improved system and method for implementing efficient decoding of scalable video bitstreams is provided. A virtual decoded picture buffer is provided for each lower layer of the scalable video bitstream. The virtual decoded picture buffer stores decoded lower layer pictures for reference. The decoded lower layer pictures used for reference are compiled to create a reference picture list for each layer. The reference picture list generated by the virtual decoded picture buffer is used during a direct prediction process instead of a target reference list to correctly decode a current macroblock.

    摘要翻译: 提供了一种用于实现可分级视频比特流的有效解码的改进的系统和方法。 为可分级视频比特流的每个下层提供虚拟解码图像缓冲器。 虚拟解码图像缓冲器存储用于参考的经解码的下层图像。 用于参考的经解码的下层图片被编译以为每层创建参考图片列表。 在直接预测处理期间使用由虚拟解码图像缓冲器生成的参考图像列表,而不是目标参考列表以正确解码当前宏块。

    SYSTEM AND METHOD FOR IMPLEMENTING LOW-COMPLEXITY MULTI-VIEW VIDEO CODING
    10.
    发明申请
    SYSTEM AND METHOD FOR IMPLEMENTING LOW-COMPLEXITY MULTI-VIEW VIDEO CODING 有权
    用于实现低复杂度多视图视频编码的系统和方法

    公开(公告)号:US20080095234A1

    公开(公告)日:2008-04-24

    申请号:US11854470

    申请日:2007-09-12

    IPC分类号: H04N11/02

    摘要: A system and method for implementing low complexity multi-view video coding. According to various embodiments, single-loop decoding is applied to multi-view video coding. For N coded views, where only M of the N views are to be displayed, only those M views are required to be fully decoded and stored to a decoded picture buffer (DPB) when needed. Pictures of other views are only partially decoded or simply parsed and do not have to be stored into the DPB. Various embodiments also provide for an encoder that encodes multi-view video bitstreams in accordance with the single-loop decoding concept, as well as a decoder that utilizes single-loop decoding to decode and output on a subset of the encoded views from a multi-view bitstream.

    摘要翻译: 一种用于实现低复杂度多视图视频编码的系统和方法。 根据各种实施例,单环路解码被应用于多视点视频编码。 对于N个编码视图,其中仅显示N个视图的M个,在需要时仅需要将M个视图完全解码并存储到解码图像缓冲器(DPB)。 其他视图的图片仅部分解码或简单解析,无需存储到DPB中。 各种实施例还提供了一种编码器,其根据单环路解码概念对多视点视频比特流进行编码,以及解码器,其利用单循环解码从多路视频视频流的多重视频流中解码和输出编码视图的子集, 查看比特流。